CN105647503B - Shale gas exploitation nano particle Static Blasting Agent and its manufacturing method - Google Patents
Shale gas exploitation nano particle Static Blasting Agent and its manufacturing method Download PDFInfo
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Abstract
A kind of shale gas exploitation nano particle Static Blasting Agent, it is related to a kind of shale gas exploitation field, the crystal grain binding material that blasting agent includes the basis material that parts by weight are 80~90, parts by weight are 10~20, basis material is less than the calcium oxide of 100nm for grain size, and crystal grain binding material is less than the nanometer mixed oxide of 80nm for grain size.Method includes step：A, mixed raw material is prepared；B, it mixes：Basis material, crystal grain binding material and its suitable quantity of water are uniformly mixed；C, it grinds：Ball mill grinding is sent into, obtains the particle of reunion shape；D, it sieves：Screening, obtains the particulate material of 20~30 height of eye circularity；E, it fires：Particulate material after screening is sent into stove and is fired, obtains shale gas exploitation nano particle Static Blasting Agent.The present invention has the characteristics that explosion expansive force is uniform, blasting time is short, blasting time is stable, working efficiency is high, construction is simple, safety and environmental protection, fracturing effect are good, at low cost, use easy to spread.
Description
Technical field
The present invention relates to a kind of unconventional gas resource shale gas exploitation field, particularly a kind of shale gas exploitation is with receiving
Rice grain Static Blasting Agent and its manufacturing method.
Background technology
Shale gas is a kind of important unconventional gas resource, and main body is located at dark-coloured mud shale or high-carbon mud shale
In, it is to be gathered in shale class interlayer as main existing way using absorption or free state.It is both conventional energy resource natural gas
Potential alternative energy source and clean environment firendly new energy.Its main component is the novel of large-scale application from now on based on methane
Natural gas.Due to shale gas complex genesis, cause its storage form complicated, about 50 are present in crack, hole and other preserve
Space, about 50 are present in clay particle and pore surface with adsorbed state, and minute quantity is stored in sandwich-like with dissolved state
In siltstone, silty, argillaceous siltstoue.Therefore, shale gas permeability of reservoir is low, and the resistance ratios of air-flow are routinely natural
Gas is big, causes shale gas exploitation technical difficulty very big.But since the specific surface of shale gas reservoir is bigger than conventional sandstone reservoir
Very much, absorption tolerance is much larger than sandstone absorption tolerance, and shale gas can have longer stable production period, higher cumulative gas production
With preferable Development volue.According to the pool forming rules, reservoir space, percolation law of shale gas, pass through the shale pressure to hyposmosis
Natural gas flow channel can be opened up by splitting, so as to achieve the purpose that shale gas is collected in exploitation.Therefore fracturing technique is opened as shale gas
The important technology adopted.
The Low Permeability Oil/gas such as shale gas have formed the new highlight of exploration and development in China at present.Realize Low Permeability Oil/gas business
The utilization of scale, production cost could be reduced by mainly improving its gas production and recovery ratio, and bottleneck is that pressure break skill
Art or pressure break methods problem.Skill disclosed in patent of invention CN102168543B, CNl102877823A and CN103161434A
Art method is utilized blasting principle and oil and gas reservoir is transformed to increase the rate of oil and gas recovery, the drawback is that using routine
Explosive blasting mode, there are safety in utilization it is poor the problems such as.This explosive blasting mode is also well over bending for rock simultaneously
It takes stress and destroys wellbore, and then form rock compaction band so that pawl splits effect and is limited, narrow application range.
The static blasting fracturing process that the Low permeable oil and gas reservoirs such as shale gas disclosed in patent of invention CN104005748A are exploited,
Compared with explosive blasting mode, realize explosion without sound equipment, it is shockproof, without advantages such as toxic gas emissions.But this kind of static blasting pressure
Static Blasting Agent used in cracking method is the powdered blasting agent of a kind of lime or magnesia system or entringite system, in reality
In construction, need accurately metering water quantity powder is mixed and stirred, not only working efficiency is low, and hydration reaction generation hydration
Heat increases underground pore interior steam pressure and generates spout phenomenon, and vapor is caused to be not easy the gap across filling, to cause
Blasting time length, blasting agent are affected by temperature the problems such as big, blasting time is unstable, explosion expansive force is uneven.Therefore, shale
The static blasting fracturing process of gas exploitation, key, which is to manufacture, a kind of is efficiently suitable for the oil-gas reservoirs exploitation such as shale gas
New Static Blasting Agent.
Invention content
The technical problem to be solved by the present invention is to：There is provided a kind of blasting time it is short and stablize, explosion expansive force uniformly, be easy to
Improve working efficiency and safe and environment-friendly shale gas exploitation nano particle Static Blasting Agent and its manufacturing method.
Solving the technical solution of above-mentioned technical problem is：A kind of shale gas exploitation nano particle Static Blasting Agent, including
Basis material, crystal grain binding material, the parts by weight of the basis material are 80~90, and the parts by weight of crystal grain binding material are 10
~20, the basis material is less than the calcium oxide of 100nm for grain size, and crystal grain binding material is mixed for nanometer of the grain size less than 80nm
Oxide.
The present invention further technical solution be：The nanometer mixed oxide includes being blended in by following parts by weight
Oxide component together：：Fe2O3：0.1~1, Al2O3：0.5~2, SiO2：8~15, MgO：0.5~2, SO3：0.1~1.
The present invention another technical solution be：A kind of manufacturing method of shale gas exploitation nano particle Static Blasting Agent,
This method comprises the following steps：
A, mixed raw material is prepared：Basis material, crystal grain binding material are prepared respectively, and the basis material is less than for grain size
The calcium oxide of 100nm, crystal grain binding material are less than the nanometer mixed oxide of 80nm for grain size；
B, it mixes：The basis material of 80~90 parts by weight, the crystal grain binding material of 10~20 parts by weight and its suitable quantity of water are existed
It is uniformly mixed in high-speed mixer；
C, it grinds：
Mixed material is sent into ball mill, 10~30min is ground, obtains the particle of reunion shape；
D, it sieves：
The particle for shape of reuniting is obtained into the particulate material of 20~30 height of eye circularity by screening；
E, it fires：
The particulate material obtained after screening is sent into stove, 3~5h is fired at a temperature of 800~1200 DEG C, obtains shale
Gas exploitation nano particle Static Blasting Agent.
The present invention further technical solution be：In the step A, nanometer mixed oxide is included by following parts by weight
The oxide component that number mixes：：Fe2O3：0.1~1, Al2O3：0.5~2, SiO2：8~15, MgO：0.5~2, SO3：
0.1~1.
Due to using the above structure, the shale gas exploitation nano particle Static Blasting Agent and its manufacturing method of the present invention with
The prior art is compared, and is had the advantages that：
1. explosion expansive force is uniform, blasting time is short：
Since the nano particle Static Blasting Agent of the present invention includes basis material, crystal grain binding material, wherein basis material is
Grain size is less than the calcium oxide of 100nm, and crystal grain binding material is less than the nanometer mixed oxide of 80nm for grain size.Thus the present invention receive
Rice grain shape Static Blasting Agent can keep the intensity of certain intervals, explosion quilt in itself in hydration reaction without apparent powdered
The necessary bulbs of pressure can generate in a short time during explosion object.In addition, this nano particle Static Blasting Agent is due to its particle
Size it is small, have quantum size effect, the properties such as the sensitivity not having with conventional coarse grain material, catalysis.
During engineering explosion operation, since the hydration heat of hydration reaction generation will not increase pore interior steam pressure, it is more easy to vapor
In across filling gap, simultaneously because the size distribution of this Nanoparticulate Static Blasting Agent is small and uniform, it is thus possible to swollen
Swelling pressure power evenly, is more effectively transferred to by blasting body, can explosion in a short time.Therefore, during explosion of the invention
Between it is shorter.
2. blasting time stablizes：
This Nanoparticulate Static Blasting Agent can be used at all seasons, and the bulbs of pressure that explosion generates are hardly by foster
The influence of temperature is protected, blasting time is more stable.
3. working efficiency is high：
Since the nano particle Static Blasting Agent of the present invention includes basis material, crystal grain binding material, wherein basis material is
Grain size is less than the calcium oxide of 100nm, and crystal grain binding material is less than the nanometer mixed oxide of 80nm for grain size, and the nano particle is static
Blasting agent is compared with common powdered Static Blasting Agent, and specific surface area smaller, intergranular gap is larger, appropriate by injecting
Water can carry out hydration reaction in a short time, and without manually accurately metering water quantity mixes and stirs powder, efficiency is higher.
4. construction is simple and safety and environmental protection：
It is used when basis material calcium oxide, crystal grain binding material nanometer mixed oxide used in the present invention and explosion
Biodegradable films and hydrolase are commercial product, and are non-Explosive hazardous material, and when construction does not need to cap explosive, does not need to
The special work posts such as explosion, without handling the required various licensings of conventional explosives explosion, purchase transports, is safe and convenient to use,
Stratum is almost pollution-free.
5. fracturing effect is good, at low cost：
The present invention implements static blasting principle using Nanoparticulate Static Blasting Agent and carries out pressure break to oil and gas reservoir, relies on
The hydration reaction of blasting agent persistently generates the tensile stress to reservoir, and three crack, crack propagation, crack growth mistakes occurs in experience
Journey, making crack, constantly many new cracks are extended in diffusion by the inner wall in hole, and pressure break long action time, mechanical efficiency is high,
It can guarantee the continuity and validity of Fracture System, reduce pressure break cost.
It is 6. applied widely：
The present invention can be used for carrying out a variety of low permeability oil and gas fields such as shale gas, coal bed gas, compact sandstone gas, carbonatite gas
Pressure break cannot be only used for road surface to improve its permeability, most probably in waterborne, and can be suitable for horizontal well and vertical well two simultaneously
Kind mining type, the scope of application is than wide.
In the following, in conjunction with the embodiments to the shale gas exploitation of present invention nano particle Static Blasting Agent and its manufacturing method
Technical characteristic is further described.
Specific embodiment
Embodiment one：
A kind of shale gas exploitation nano particle Static Blasting Agent, including basis material, crystal grain binding material, the matrix
The parts by weight of material are 80, and the parts by weight of crystal grain binding material are 10, and the basis material is less than the oxygen of 100nm for grain size
Change calcium, crystal grain binding material is less than the nanometer mixed oxide of 80nm for grain size, this nanometer of mixed oxide is included by following by weight
The oxide component that amount number mixes：Fe2O3：0.1, Al2O3：0.5, SiO2：8, MgO：0.5, SO3：0.1.
Embodiment two：
A kind of shale gas exploitation nano particle Static Blasting Agent, including basis material, crystal grain binding material, the matrix
The parts by weight of material are 90, and the parts by weight of crystal grain binding material are 20, and the basis material is less than the oxygen of 100nm for grain size
Change calcium, crystal grain binding material is less than the nanometer mixed oxide of 80nm for grain size, this nanometer of mixed oxide is included by following by weight
The oxide component that amount number mixes：Fe2O3：1, Al2O3：2, SiO2：15, MgO：2, SO3：1.
Embodiment three：
A kind of shale gas exploitation nano particle Static Blasting Agent, including basis material, crystal grain binding material, the matrix
The parts by weight of material are 82, and the parts by weight of crystal grain binding material are 15, and the basis material is less than the oxygen of 100nm for grain size
Change calcium, crystal grain binding material is less than the nanometer mixed oxide of 80nm for grain size, this nanometer of mixed oxide is included by following by weight
The oxide component that amount number mixes：Fe2O3：0.5, Al2O3：1.0, SiO2：10, MgO：1, SO3：0.5.
Example IV：
A kind of shale gas exploitation nano particle Static Blasting Agent, including basis material, crystal grain binding material, the matrix
The parts by weight of material are 88, and the parts by weight of crystal grain binding material are 18, and the basis material is less than the oxygen of 100nm for grain size
Change calcium, crystal grain binding material is less than the nanometer mixed oxide of 80nm for grain size, this nanometer of mixed oxide is included by following by weight
The oxide component that amount number mixes：Fe2O3：0.8, Al2O3：1.5, SiO2：12, MgO：1.5
SO3：0.8.
Embodiment five：
A kind of shale gas exploitation manufacturing method of nano particle Static Blasting Agent, this method comprises the following steps：
A, mixed raw material is prepared：Basis material, crystal grain binding material are prepared respectively, and the basis material is less than for grain size
The calcium oxide of 100nm, crystal grain binding material are less than the nanometer mixed oxide of 80nm for grain size；
B, it mixes：By the basis material of 80 parts by weight, the crystal grain binding material of 10 parts by weight and its suitable quantity of water in mixed at high speed
It is uniformly mixed in machine；
C, it grinds：
Mixed material is sent into ball mill, 10min is ground, obtains the particle of reunion shape；
D, it sieves：
The particle for shape of reuniting is obtained into the particulate material of 20 height of eye circularity by screening；
E, it fires：
The particulate material obtained after screening is sent into stove, 3h is fired at a temperature of 800 DEG C, obtains described in embodiment one
Shale gas exploitation nano particle Static Blasting Agent.
In the step A, nanometer mixed oxide is included by the following oxide group mixed in parts by weight
Point： Fe2O3：0.1, Al2O3：0.5, SiO2：8, MgO：0.5, SO3：0.1.
Embodiment six：
A kind of shale gas exploitation manufacturing method of nano particle Static Blasting Agent, this method comprises the following steps：
A, mixed raw material is prepared：Basis material, crystal grain binding material are prepared respectively, and the basis material is less than for grain size
The calcium oxide of 100nm, crystal grain binding material are less than the nanometer mixed oxide of 80nm for grain size；
B, it mixes：By the basis material of 90 parts by weight, the crystal grain binding material of 20 parts by weight and its suitable quantity of water in mixed at high speed
It is uniformly mixed in machine；
C, it grinds：
Mixed material is sent into ball mill, 30min is ground, obtains the particle of reunion shape；
D, it sieves：
The particle for shape of reuniting is obtained into the particulate material of 30 height of eye circularity by screening；
E, it fires：
The particulate material obtained after screening is sent into stove, 5h is fired at a temperature of 1200 DEG C, obtains described in embodiment two
Shale gas exploitation nano particle Static Blasting Agent.
In the step A, nanometer mixed oxide is included by the following oxide group mixed in parts by weight
Point：Fe2O3：1, Al2O3：2, SiO2：15, MgO：2, SO3： 1.
Embodiment seven：
A kind of shale gas exploitation manufacturing method of nano particle Static Blasting Agent, this method comprises the following steps：
A, mixed raw material is prepared：Basis material, crystal grain binding material are prepared respectively, and the basis material is less than for grain size
The calcium oxide of 100nm, crystal grain binding material are less than the nanometer mixed oxide of 80nm for grain size；
B, it mixes：By the basis material of 82 parts by weight, the crystal grain binding material of 15 parts by weight and its suitable quantity of water in mixed at high speed
It is uniformly mixed in machine；
C, it grinds：
Mixed material is sent into ball mill, 15min is ground, obtains the particle of reunion shape；
D, it sieves：
The particle for shape of reuniting is obtained into the particulate material of 25 height of eye circularity by screening；
E, it fires：
The particulate material obtained after screening is sent into stove, 4h is fired at a temperature of 1000 DEG C, obtains described in embodiment three
Shale gas exploitation nano particle Static Blasting Agent.
In the step A, nanometer mixed oxide is included by the following oxide group mixed in parts by weight
Point：
Fe2O3：0.5, Al2O3：1.0, SiO2：10, MgO：1, SO3：0.5.
Embodiment eight：
A kind of shale gas exploitation manufacturing method of nano particle Static Blasting Agent, this method comprises the following steps：
A, mixed raw material is prepared：Basis material, crystal grain binding material are prepared respectively, and the basis material is less than for grain size
The calcium oxide of 100nm, crystal grain binding material are less than the nanometer mixed oxide of 80nm for grain size；
B, it mixes：By the basis material of 88 parts by weight, the crystal grain binding material of 18 parts by weight and its suitable quantity of water in mixed at high speed
It is uniformly mixed in machine；
C, it grinds：
Mixed material is sent into ball mill, 25min is ground, obtains the particle of reunion shape；
D, it sieves：
The particle for shape of reuniting is obtained into the particulate material of 28 height of eye circularity by screening；
E, it fires：
The particulate material obtained after screening is sent into stove, 4.5h is fired at a temperature of 1100 DEG C, obtains example IV institute
The shale gas exploitation stated nano particle Static Blasting Agent.
In the step A, nanometer mixed oxide is included by the following oxide group mixed in parts by weight
Point：
Fe2O3：0.8, Al2O3：1.5, SiO2：12, MgO：1.5, SO3：0.8.
Shale gas exploitation described in above-mentioned the present embodiment one~tetra- is with nano particle Static Blasting Agent for the specific of explosion
Method is：Producing well is bored to oil and gas reservoir, inflation port is obtained to production layer perforation or drilling after well cementation；It will be by Biodegradable films packet
It puts into well after wrapping up in this nano particle Static Blasting Agent, is carried secretly by hydrolysis enzyme solutions into inflation port；Biodegradable films are in water
Blasting agent is released after complete hydrolysis under the action of solution enzyme, volume constantly expands generation turgor pressure and continues after blasting agent is reacted with water
Pressure break reservoir forms crack；Fracture pressure break 1~2 time again expands old crack by swelling stress, and extends new split
Seam makes crack progressing become the fracture network of perforation.Above-mentioned producing well is vertical well or underwater well；The Biodegradable films
For environment-protecting and non-poisonous polylactic acid/composite membrane of polyvinyl alcohol；Solvent is water in the hydrolysis enzyme solutions, and solute is hydrolase, should
Hydrolase is environment-protecting and non-poisonous liquefying amylase or α~amylase；A diameter of 20~the 100mm of the inflation port, hole depth 0.2
~1.5 m.
Claims (2)
1. a kind of shale gas exploitation nano particle Static Blasting Agent, it is characterised in that：Including basis material, crystal grain binding material,
The parts by weight of the basis material are 80~90, and the parts by weight of crystal grain binding material are 10~20, the basis material
It is less than the calcium oxide of 100nm for grain size, crystal grain binding material is less than the nanometer mixed oxide of 80nm for grain size；The nanometer is mixed
It closes oxide and includes the oxide component mixed by following parts by weight：Fe2O3：0.1~1, Al2O3：0.5~2,
SiO2：8~15, MgO：0.5~2, SO3：0.1~1.
2. a kind of shale gas exploitation manufacturing method of nano particle Static Blasting Agent, it is characterised in that：This method includes as follows
Step：
A, mixed raw material is prepared：Basis material, crystal grain binding material are prepared respectively, and the basis material is less than 100nm for grain size
Calcium oxide, crystal grain binding material for grain size be less than 80nm nanometer mixed oxide；
B, it mixes：By the basis material of 80~90 parts by weight, the crystal grain binding material of 10~20 parts by weight and its suitable quantity of water at a high speed
It is uniformly mixed in mixing machine；
C, it grinds：
Mixed material is sent into ball mill, 10~30min is ground, obtains the particle of reunion shape；
D, it sieves：
The particle for shape of reuniting is obtained into the particulate material of 20~30 height of eye circularity by screening；
E, it fires：
The particulate material obtained after screening is sent into stove, 3~5h is fired at a temperature of 800~1200 DEG C, shale gas is obtained and opens
Using nano particle Static Blasting Agent；
In the step A, nanometer mixed oxide includes the oxide component mixed by following parts by weight：
Fe2O3：0.1~1, Al2O3：0.5~2, SiO2：8~15, MgO：0.5~2, SO3：0.1~1.
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| CN111472741A (en) * | 2020-05-25 | 2020-07-31 | 山东大学 | Experimental method for researching rock fracturing multi-crack propagation rule by using volume expansion material |
| CN111622722B (en) * | 2020-05-26 | 2022-03-15 | 太原理工大学 | By using supercritical CO2Method for improving coal bed gas recovery ratio by using Nano-Silica |
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|---|---|---|---|---|
| CN103773356A (en) * | 2014-01-21 | 2014-05-07 | 成都新柯力化工科技有限公司 | Granule for exploiting shale gas and preparation method thereof |
| CN104005748A (en) * | 2014-05-21 | 2014-08-27 | 华南理工大学 | Static blasting fracturing method used for exploitation of shale gas and other low permeability oil and gas reservoirs |
| CN104152136A (en) * | 2014-08-29 | 2014-11-19 | 中国地质大学（武汉） | Method for preparing ultra-low-density fracturing and propping agent by using white clay |
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| US7931087B2 (en) * | 2006-03-08 | 2011-04-26 | Baker Hughes Incorporated | Method of fracturing using lightweight polyamide particulates |
| US20150252663A1 (en) * | 2012-09-27 | 2015-09-10 | Wintershall Holding GmbH | Flowable composition, method for producing the flowable composition and method for fracking a subterranean formation using the flowable composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773356A (en) * | 2014-01-21 | 2014-05-07 | 成都新柯力化工科技有限公司 | Granule for exploiting shale gas and preparation method thereof |
| CN104005748A (en) * | 2014-05-21 | 2014-08-27 | 华南理工大学 | Static blasting fracturing method used for exploitation of shale gas and other low permeability oil and gas reservoirs |
| CN104152136A (en) * | 2014-08-29 | 2014-11-19 | 中国地质大学（武汉） | Method for preparing ultra-low-density fracturing and propping agent by using white clay |
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